• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tubes / Valves

All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum
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Volume Controls
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8
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2K
Glowin Plates
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T
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Which EL84
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22
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10K
Ian444
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Tube stage placement in a mongrel (hybrid) amp
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2
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szechuan
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R
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possible to filter dips in AC line?
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28
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kevinkr
kevinkr
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Bias or loss of power in one channel problem
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1
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kevinkr
kevinkr
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Will KT88 increase output power in Copland CTA-402
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18
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Bill Kilgore
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A
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What is the fault with this amp?
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3
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analogadikt
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S
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300B with interstage
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4
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Vinylsavor
Vinylsavor
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Weston Ammeter Headphone Amp Prototype
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1
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Sheldon
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F
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k-12G turret board version
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2
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Soonerorlater
Soonerorlater
Fuling
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807 E-Linear
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51
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14K
Zekk
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H
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AA 151 or Scott 222
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16
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Hamersveld
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L
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Connect ipod/laptop to old 1950's radio
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6
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Hi_Q
Hi_Q
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GU-19 In priboi
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3
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Dorin Bodea
Dorin Bodea
C
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Did I do this loadline correctly
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14
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Troncones
Troncones
J
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Would it be possible to drive a 300b with new power jfets?
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0
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882
JZatopa
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R
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Leave it on or turn it off?
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17
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anatech
anatech
M
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Pattern for power xmfr magnetic leaking ?
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19
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M Gregg
M Gregg
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Little Dot Mk IV SE
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1
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bigdirty
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Klaatu
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Ultimate Octal
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2
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Tubelab_com
Tubelab_com
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